Tire core



March 17, 1925 v. H. HURT TIRE CORE Filed Fgp.: 1o, 1922 f Patented Mar. 17, 192s.

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pins and the ring form a locking means ,for holding the device inrigd annular form.

My improved lockingv means may be easily applied to a forml of sectional coresl now in general use. This embodiment is indicated in Figs. 6 to 8, inclusive.: In this foi-m of device the web 19 has two laterally extending annular ribs 31 thereon, one .of the ribs 31 being adapted to `engagea recess 32 in.V

the ring 33. Portions of theweb 19 may be cutaway as at 34, see Fig. 7, forfacilitating connecting the headed studs or bolts for locking the ring to the web 19. In this con-A struction tlie stud 23 isset so that its head y24 extends down adjacentthe cut-away portion 34. The studs 29 are preferably extended radially in the ring 33, as clearly indicated in Fig. 6, sothat their heads 30 can engage the heads 24 to lock the ring .in'pof sition to hold the sections in annular form.

,v `It willbe vapparent that the dowel ypin ar- 'rangement above referred to may be utilized in the formshownin'Figs. 6 to 8, inclusive, for holding the sections in alinement.

. In `assembling'the device, sectionll may .l irstfbe placed in position, and then sections 10 vand 12 placed lin vposition at the ends of section 11..,1Section 13 is then moved upwardly from a position between the sections 10and 12 permitting the dowels 16 to slide inthe groovesl to bringsaid section 13 into position. The ring 25 is. then placed on the web 19 with the 'heads 30 in the cutaway portions 22. The ringrv `is then rotated to bring 4the heads 3() in engagement with the heads 24. This rotation of the ring may be accomplished in yany desirable manner. I have provided openings 35 and 36 in adjacent portions of web 19 and ring 25 lso that a suitable Spanner wrench, not shown, may be applied to the 'openings to facilitate `rotating the` ring. 4Any suitablelocliing meansmay be provided to preventrotation of the4 ring 25 with respect to the web. `In Fig. 1 I have indicated a set screw 37. ythreaded-inthe ring' 25 in a position to eni' gage the inner periphery of web 19 to lock the ring against rotation. In Fig. 5 Iliave indicated a pin 38 mounted in iiangef19 and pressed into ar recess 39 in ringy 25 by a spring 40. With such a construction thel ring 25 would be rotated on the fiange 19 until the pin 38 slipped into'the opening39 when the ring would be held against rotation. YVVhen'it is desired tor disassemble the device, the wrench placed in opening y36 y, would press the Pin 38. down out of opening .39 and permit the ring to-,be rotated. It 'will be apparent that either of these forms of locks may be provided for vthe ring, or, both forms mayv be used, ifso desired.

I claim: v .1. A tire core comprising a plurality o arc-shaped coresectionsya vring engaging said core sections; and headed studs fixed respect to the core sections.

in the ring and iuc-shapclv sections with thel heads of the studs in the ring engaging the heads of the studs; on said sections locking said sections to said ring. l

2. Atire core comprising a'lplurality of arc-shaped core sections; a ring engaging said core sections with a groove in the ring adjacent said core sections; headed studs on saidcore sections. with the heads of said "studs extending 'into the groove of `saidV ring; and headed studs on the ring with the heads of said studs disposed in said groove and engaging the heads of the studs on said sections locking said sections to said ring.

groove therein; a ring having va groove conl centric with the groove in said coresections; and locking means in said grooves adapted to lock the ring and core sections together upon limited rotary movement lof thev ring .with respect to the core sections.

5. A tirev core comprising a pluralityV of 4sus core sections having an annular groove therein; a ring having a groove concentric with the groove of said core sections; projections von the corel sections extending into lthegroove in the latter; and projections on the ring extending into theV recess in said ring and lengaging the projections onfthe core sections to lock the latter to said ring.

6. A tirecore comprising aplurality of 'coreV sections having an annular,` groove therein; ya ring having a 'groove concentric with the groove of said core sections; pro-.

`jections on the core sections ,extending into the groove in kthe latter; projections on the ring extending into theviecess in said ring and engaging the projections on the corey sections to lock the latter to said ring and a lock for automatically locking the core sections andv ring together when brought into operative condition. I

7. A tire core comprising a plurality of arc-shapedsections having y an annular groove therein; a ring having a groove concentric vwith the groove of said core sections; means for 'locking the ring and core .sections against lateral movements of the ring with respect to the core sections; and a spring pressed pin and recess locking the 'ring against relative rotary movements with f 8. 'A tire core comprising a plurality' of arc-shaped core sect1ons;` dowel pin connections between adjacent ends of sald core sections; a ring engaging al1 of saidy sections; bayonet joint connections locking `the ring against lateral movement away from said 4core sections; and a Vlock for lockmgv In testimony whereof I have ysigned InyI 10 name to thisspecicaton on: this 4th day 0ff Febru'ary'A.111922.'vV

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